Effect of compound nuclear reaction mechanism in 12C(Li6,d) reaction at sub-Coulomb energy

Abstract

The angular distribution of the 12C(Li6,d) reaction populating the 6.92 and 7.12 MeV states of 16O at sub-Coulomb energy (E=cm3 MeV) are analysed in the framework of the Distorted Wave Born Approximation (DWBA). Recent results on excitation function measurements and backward angle angular distributions derive ANC for both the states on the basis of an alpha transfer mechanism. In the present work, we show that considering both forward and backward angle data in the analysis, the 7.12 MeV state at sub-Coulomb energy is populated from Compound nuclear process rather than transfer process. The 6.92 MeV state is however produced from direct reaction mechanism.